The FCC Office of Engineering and Technology released...

The FCC Office of Engineering and Technology released modified rules for measuring spectrum emissions by level probing radar (LPR) devices operating on an unlicensed basis in the 5.925-7.250 GHz, 24.05-29.00 GHz, and 75-85 GHz bands. LPR devices are used to measure water basin levels and coal piles, among other applications, OET said (http://bit.ly/1dTpAum). “Manufacturers have had a difficult time demonstrating compliance with the rule’s low emission limits for certain types of level-measuring applications in fiberglass or polyethylene (plastic) tanks or in open air,” OET said. Certification of LPR equipment under the new rules requires “measuring emissions in the main beam of the LPR antenna, while adjusting the emission limits in Part 15 for devices so measured to account for the significant attenuation that occurs upon reflection of those emissions,” OET said. “These emission limits will protect any nearby receivers from encountering any increase in interfering signal levels."